Personally speaking
If she thinks that her son is "vulnerable" because of Aspurger's, does she support him and other asspies being placed into long-term custodial care? Or should they, even if being congenitally incapable of conforming to society's norm, still be be allowed to roam free in society, but not be held responsible, legally or criminally, for their actions? Shouldn't people not responsible for their actions be isolated from society, both for their own good and the good of society? I understand that that might prevent her from seeing her son as often as she wants, or under the conditions that she might prefer, but, personally speaking, I really don't think that that is what should determine public policy. Of course, she would certainly feel otherwise.